Loss Of Voltage (Lov) Loop Automation Function; Reference (Lov-A/X Dead/Live ); Operate And Reset Level; Reference Lov Automation Timers - Siemens 7SR224 Technical Manual

4.2

Loss of Voltage (LOV) Loop Automation Function

4.2.1

Reference (LOV-A/X Dead/Live )

Parameter
Live Vs Setting
Dead Vs Setting
4.2.2

Operate and Reset Level

Attribute
V Operate level
op
Reset level
Repeatability
-10 °C to +55 °C
Variation
f - 3 Hz to f
nom
4.2.3

Reference LOV Automation Timers

Attribute
t LOV Primed Time
op
LOV Action Delay
t
op
t LOV-A Action Delay
op
t LOV-X Action Delay
op
t LOV Sequence Time
op
t LOV Reclose Delay
op
t LOV SOTF Time
op
t LOV Reclaim Time
op
t LOV Memory Time
op
4.2.4

Operate Time LOV Automation Timers

Attribute
t Accuracy
op
Repeatability
©2010 Siemens Protection Devices Limited
Value
5, 5.5... 80V
5, 5.5... 80V
Value
100 % LiveVs, ± 2 % or ± 0.5 V
100 % DeadVs, ± 2 % or ± 0.5 V
± 1 %
≤ 5 %
≤ 5 %
+ 2 Hz
nom
Value
0, 1 ... 600s
0, 1 ... 600s
0, 1 ... 600s
0, 1 ... 600s
0, 1 ... 600s
0, 1 ... 600s
0, 1 ... 600s
0, 1 ... 600s
0, 1 ... 600s
Value
, ± 1 % or ± 50ms
t
op
± 1 % or ± 50ms
7SR224 Argus Performance Specification
Chapter 3 Page 49 of 49